[SOLVED] cifs share

1s440 · 08-13-2020, 03:29 AM

Hi all,

We have a cifs share mounted on the linux server with the user as below

mount -t cifs /tmp/data /xxx/xxx/data -o user=tobhia,password=welcome123,domain=xxxx

How can i check if the user "tobhia" has access to the folder "data" ?

Earlier we dont have access to the subfolders under cifs share(which has already mounted) now has access to the subfolders. Should we remount it again to access the subfolders as user tobhia?

berndbausch · 08-13-2020, 04:31 AM

Quote:

Originally Posted by 1s440

mount -t cifs /tmp/data /xxx/xxx/data -o user=tobhia,password=welcome123,domain=xxxx

This doesn't look correct. There should be a double slash somewhere, perhaps //tmp/data?

Quote:

How can i check if the user "tobhia" has access to the folder "data" ?

I wonder if I understand your problem, but this tells you if tobhia has read access to that directory:

Code:

su tobhia -c "ls /xxx/xxx/data"

For write access, use touch.

Quote:

Earlier we dont have access to the subfolders under cifs share(which has already mounted) now has access to the subfolders. Should we remount it again to access the subfolders as user tobhia?

I don't know why you didn't have access earlier, and it's not clear to me which problem you want to solve by remounting. Can you rephrase the question?

michaelk · 08-13-2020, 04:55 AM

The correct syntax is

Code:

 mount -t cifs //remote/share /mount/dir

Does not matter if option are before or after the //remote/share /mount/dir. user is the username used to access the remote share and not necessarily the same as on the local system. The best way to know if the username has access to a share is to verify their permissions on the remote computer.

1s440 · 08-13-2020, 05:01 AM

Quote:

Originally Posted by michaelk

The correct syntax is

Code:

 mount -t cifs //remote/share /mount/dir

Does not matter if option are before or after the //remote/share /mount/dir. user is the username used to access the remote share and not necessarily the same as on the local system. The best way to know if the username has access to a share is to verify their permissions on the remote computer.

When i try to mount the share i get the below error. There is an entry in the fstab

Code:

mount -t cifs //tmp/data/ /xxx/xxx/data -o user=thobia,password=welcome123,domain=domain

Couldn't chdir to /xxx/xxx/data: No such file or directory

michaelk · 08-13-2020, 05:06 AM

Post the entry from the fstab file.

1s440 · 08-13-2020, 05:09 AM

Quote:

Originally Posted by berndbausch

This doesn't look correct. There should be a double slash somewhere, perhaps //tmp/data?

sorry doubleslash is missed

I wonder if I understand your problem, but this tells you if tobhia has read access to that directory:

Code:

su tobhia -c "ls /xxx/xxx/data"

For write access, use touch.

unfortunately touch access doesnot work. I always have permission denied.

I don't know why you didn't have access earlier, and it's not clear to me which problem you want to solve by remounting. Can you rephrase the question?

This share is from remote location and we are just mounting it to access it. Earlier we had access only to the parent folder. But now we also got access to the subfolders.

1s440 · 08-13-2020, 05:11 AM

Quote:

Originally Posted by michaelk

Post the entry from the fstab file.

Code:

//tmp/data/ /xxx/xxx/data cifs user=thobia,password=welcome123,domain=domain,noserverino,_netdev 0 0

when i just use

Code:

 mount /xxx/xxx/data

mount error(112): Host is down
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

pan64 · 08-13-2020, 05:17 AM

//remote/share -> remote is a host name or an ip, share is the name of the samba share (which you want to access from your linux box).
/tmp/data most probably your mount point, that is not a share, but a local directory.
in fstab the first column is the remote share and the second one is the mount point. I think you mixed it.

michaelk · 08-13-2020, 05:21 AM

//tmp would be the remote computer hostname which does not look correct and why both berndbausch and I question the syntax of your command. Again the device or remote computer/share needs to be first. I assume that /xxx/xxx is the remote computer which is why you obfuscated the information.

Code:

//xxx/xxx/data /tmp/data cifs user=thobia,password=welcome123,domain=domain,noserverino,_netdev 0 0

This makes more sense.

1s440 · 08-13-2020, 05:25 AM

Quote:

Originally Posted by pan64

//remote/share -> remote is a host name or an ip, share is the name of the samba share (which you want to access from your linux box).
/tmp/data most probably your mount point, that is not a share, but a local directory.
in fstab the first column is the remote share and the second one is the mount point. I think you mixed it.

YOu mean fstab entry is wrong?

pan64 · 08-13-2020, 05:28 AM

not really. I mean you need to check if the host name is tmp, the share name is data and the local mount point is /xxx/xxx/data.
From my side it is ok, but I'm not sure if that was correct. You need to check and decide.

1s440 · 08-13-2020, 05:31 AM

Quote:

Originally Posted by michaelk

//tmp would be the remote computer hostname which does not look correct and why both berndbausch and I question the syntax of your command. Again the device or remote computer/share needs to be first. I assume that /xxx/xxx is the remote computer which is why you obfuscated the information.

Code:

//xxx/xxx/data /tmp/data cifs user=thobia,password=welcome123,domain=domain,noserverino,_netdev 0 0

This makes more sense.

I have some mount issues now when i use[code] "mount /xxxx/xxxx/xxxx/share"

I get error "Host is down"

When I use [code]mount -t cifs //remotehostname/share/ /xxxx/xxxx/xxxx/share -o user=username,password=passwd,domain=domain,noserverino,_netdev,vers=2.0

I get "Couldn't chdir to /xxxx/xxxx/xxxx/share: No such file or directory"

Earlier it was working fine. I have requested for permissions for the subfolders on the remote cifs share

I have two problems

michaelk · 08-13-2020, 05:33 AM

If /xxxx/xxxx/xxxx/share directory does not exist it needs to be created.

pan64 · 08-13-2020, 05:34 AM

so /xxxx/xxxx/xxxx/share (or whatever is it) is a directory which should be created before you execute that mount command.

1s440 · 08-13-2020, 05:55 AM

Quote:

Originally Posted by pan64

so /xxxx/xxxx/xxxx/share (or whatever is it) is a directory which should be created before you execute that mount command.

directory is already present but somehow it says not found. Not sure it all happened after the reboot.